Pump



FIG. 1 is an elevational view of one side of a pump showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is an elevational view taken from one end thereof;

FIG. 4 is an elevational view taken from the side opposite that shown in FIG. 1;

FIG. 5 is a bottom plan view thereof; and

FIG. 6 is an elevational view taken from the end opposite that shown in FIG. 3. 

The ornamental design for a pump, substantially as shown. 